driftctl/pkg/middlewares/google_iam_policy_transform...

79 lines
2.1 KiB
Go

package middlewares
import (
"encoding/json"
"fmt"
"strings"
"github.com/snyk/driftctl/pkg/resource"
"github.com/snyk/driftctl/pkg/resource/google"
)
// GoogleStorageBucketIAMPolicyTransformer Transforms Bucket IAM policy in bucket iam binding to ease comparison.
type GoogleStorageBucketIAMPolicyTransformer struct {
resourceFactory resource.ResourceFactory
resFieldByType map[string]string // map of the field to add to resource attribute for all supported type
}
func NewGoogleIAMPolicyTransformer(resourceFactory resource.ResourceFactory) *GoogleStorageBucketIAMPolicyTransformer {
return &GoogleStorageBucketIAMPolicyTransformer{
resourceFactory,
map[string]string{
google.GoogleStorageBucketIamPolicyResourceType: "bucket",
google.GoogleProjectIamPolicyResourceType: "project",
}}
}
func (m *GoogleStorageBucketIAMPolicyTransformer) Execute(_, resourcesFromState *[]*resource.Resource) error {
resources := make([]*resource.Resource, 0)
for _, stateRes := range *resourcesFromState {
// Ignore all resources with type not in resFieldByType map
resType := stateRes.ResourceType()
resField, supported := m.resFieldByType[resType]
if !supported {
resources = append(resources, stateRes)
continue
}
resName := *stateRes.Attrs.GetString(resField)
policyJSON := *stateRes.Attrs.GetString("policy_data")
policies := policyDataType{}
err := json.Unmarshal([]byte(policyJSON), &policies)
if err != nil {
return err
}
for _, policy := range policies.Bindings {
roleName := policy["role"].(string)
members := policy["members"].([]interface{})
for _, member := range members {
id := fmt.Sprintf("%s/%s/%s", resName, roleName, member)
resources = append(
resources,
m.resourceFactory.CreateAbstractResource(
fmt.Sprintf("%s_member", strings.TrimSuffix(resType, "_policy")),
id,
map[string]interface{}{
"id": id,
resField: resName,
"role": roleName,
"member": member.(string),
},
),
)
}
}
}
*resourcesFromState = resources
return nil
}
type policyDataType struct {
Bindings []map[string]interface{}
}